const BinaryOutputStream = Components.Constructor("@mozilla.org/binaryoutputstream;1", "nsIBinaryOutputStream", "setOutputStream"); /* This data is picked from image/test/reftest/generic/check-header.sjs */ const IMAGE_DATA = [ 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x0D, 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 0x64, 0x08, 0x02, 0x00, 0x00, 0x00, 0xFF, 0x80, 0x02, 0x03, 0x00, 0x00, 0x00, 0x01, 0x73, 0x52, 0x47, 0x42, 0x00, 0xAE, 0xCE, 0x1C, 0xE9, 0x00, 0x00, 0x00, 0x9E, 0x49, 0x44, 0x41, 0x54, 0x78, 0xDA, 0xED, 0xD0, 0x31, 0x01, 0x00, 0x00, 0x08, 0x03, 0xA0, 0x69, 0xFF, 0xCE, 0x5A, 0xC1, 0xCF, 0x07, 0x22, 0x50, 0x99, 0x70, 0xD4, 0x0A, 0x64, 0xC9, 0x92, 0x25, 0x4B, 0x96, 0x2C, 0x05, 0xB2, 0x64, 0xC9, 0x92, 0x25, 0x4B, 0x96, 0x02, 0x59, 0xB2, 0x64, 0xC9, 0x92, 0x25, 0x4B, 0x81, 0x2C, 0x59, 0xB2, 0x64, 0xC9, 0x92, 0xA5, 0x40, 0x96, 0x2C, 0x59, 0xB2, 0x64, 0xC9, 0x52, 0x20, 0x4B, 0x96, 0x2C, 0x59, 0xB2, 0x64, 0x29, 0x90, 0x25, 0x4B, 0x96, 0x2C, 0x59, 0xB2, 0x14, 0xC8, 0x92, 0x25, 0x4B, 0x96, 0x2C, 0x59, 0x0A, 0x64, 0xC9, 0x92, 0x25, 0x4B, 0x96, 0x2C, 0x05, 0xB2, 0x64, 0xC9, 0x92, 0x25, 0x4B, 0x96, 0x02, 0x59, 0xB2, 0x64, 0xC9, 0x92, 0x25, 0x4B, 0x81, 0x2C, 0x59, 0xB2, 0x64, 0xC9, 0x92, 0xA5, 0x40, 0x96, 0x2C, 0x59, 0xB2, 0x64, 0xC9, 0x52, 0x20, 0x4B, 0x96, 0x2C, 0x59, 0xB2, 0x64, 0x29, 0x90, 0x25, 0x4B, 0x96, 0x2C, 0x59, 0xB2, 0x14, 0xC8, 0x92, 0x25, 0x4B, 0x96, 0x2C, 0x59, 0x0A, 0x64, 0xC9, 0xFA, 0xB6, 0x89, 0x5F, 0x01, 0xC7, 0x24, 0x83, 0xB2, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4E, 0x44, 0xAE, 0x42, 0x60, 0x82, ]; /** * The timer is needed when a delay is set. We need it to be out of the method * so it is not eaten alive by the GC. */ var timer; function handleRequest(request, response) { var query = {}; request.queryString.split('&').forEach(function (val) { var [name, value] = val.split('='); query[name] = unescape(value); }); response.setStatusLine(request.httpVersion, 200, "OK"); response.setHeader("Content-Type", "image/png", false); function imageWrite() { var stream = new BinaryOutputStream(response.bodyOutputStream); stream.writeByteArray(IMAGE_DATA, IMAGE_DATA.length); } // If there is no delay, we write the image and leave. if (!("delay" in query)) { imageWrite(); return; } // If there is a delay, we create a timer which, when it fires, will write // image and leave. response.processAsync(); const nsITimer = Components.interfaces.nsITimer; timer = Components.classes["@mozilla.org/timer;1"].createInstance(nsITimer); timer.initWithCallback(function() { imageWrite(); response.finish(); }, query["delay"], nsITimer.TYPE_ONE_SHOT); }